ConvertOnline

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1. Convert Online
2. Video Converters
3. WEBM to MP4

{
  "convert": "webm-mp4",
  "multiple": true,
  "from": "webm",
  "to": "mp4",
  "controls": [
    {
      "type": "dropdown",
      "name": "video_bitrate",
      "label": "Video Bitrate",
      "options": [
        {
          "label": "500 kbps (Low)",
          "value": "500k"
        },
        {
          "label": "1000 kbps (Standard)",
          "value": "1000k"
        },
        {
          "label": "2000 kbps",
          "value": "2000k"
        },
        {
          "label": "4000 kbps (High)",
          "value": "4000k"
        }
      ],
      "defaultValue": "1000k",
      "desc": "Controls the output video bitrate. Higher bitrate improves quality but increases file size. 1000 kbps is a balanced default."
    },
    {
      "type": "dropdown",
      "name": "frame_rate",
      "label": "Frame Rate (FPS)",
      "options": [
        {
          "label": "24 FPS (Cinema)",
          "value": 24
        },
        {
          "label": "30 FPS (Standard)",
          "value": 30
        },
        {
          "label": "60 FPS (Smooth)",
          "value": 60
        }
      ],
      "defaultValue": 30,
      "desc": "Sets the output video frame rate. Higher frame rates make motion smoother, but increase file size."
    },
    {
      "type": "dropdown",
      "name": "resolution",
      "label": "Video Resolution",
      "options": [
        {
          "label": "480p (854x480)",
          "value": "854x480"
        },
        {
          "label": "720p (1280x720)",
          "value": "1280x720"
        },
        {
          "label": "1080p (1920x1080)",
          "value": "1920x1080"
        }
      ],
      "defaultValue": "1280x720",
      "desc": "Sets the output video resolution. 720p is suitable for most uses. Higher resolutions require more processing and storage."
    },
    {
      "type": "dropdown",
      "name": "aspect_ratio",
      "label": "Aspect Ratio",
      "options": [
        {
          "label": "16:9 (Widescreen)",
          "value": "16:9"
        },
        {
          "label": "4:3 (Classic)",
          "value": "4:3"
        }
      ],
      "defaultValue": "16:9",
      "desc": "Defines the display aspect ratio. 16:9 is the modern widescreen standard, while 4:3 is used for older or square videos."
    },
    {
      "type": "dropdown",
      "name": "video_codec",
      "label": "Video Codec",
      "options": [
        {
          "label": "H.264 (libx264)",
          "value": "libx264"
        },
        {
          "label": "H.265 (libx265)",
          "value": "libx265"
        },
        {
          "label": "Copy (no re-encoding)",
          "value": "copy"
        }
      ],
      "defaultValue": "libx264",
      "desc": "Selects the codec used to encode the video stream. 'copy' skips re-encoding and is much faster, but may not be compatible with all players."
    },
    {
      "type": "dropdown",
      "name": "pass",
      "label": "Encoding Pass",
      "options": [
        {
          "label": "1-Pass (Fast)",
          "value": 1
        },
        {
          "label": "2-Pass (Better Quality)",
          "value": 2
        }
      ],
      "defaultValue": 1,
      "desc": "Choose between fast 1-pass or higher-quality 2-pass encoding. 2-pass improves compression efficiency but takes longer."
    },
    {
      "type": "dropdown",
      "name": "audio_bitrate",
      "label": "Audio Bitrate",
      "options": [
        {
          "label": "64 kbps",
          "value": "64k"
        },
        {
          "label": "128 kbps",
          "value": "128k"
        },
        {
          "label": "192 kbps",
          "value": "192k"
        },
        {
          "label": "256 kbps",
          "value": "256k"
        }
      ],
      "defaultValue": "128k",
      "desc": "Sets the output audio bitrate for the MP4 file. A higher value improves audio quality."
    }
  ],
  "type": "video",
  "operation": "convert"
}